Notwithstanding this part to the contrary:
(1) Except as otherwise provided in subdivision (2), the operator of a passenger motor vehicle under this part shall not be fined for the failure of any passenger over sixteen (16) years of age to wear a safety belt; and
(2) For purposes of an ADS-operated vehicle and when the ADS is engaged, neither the operator nor the owner shall be fined for the failure of any passenger, regardless of age, to wear a safety belt.